Tranilast impurity 4 CAS 58818-70-5
| CAS No. | 58818-70-5 |
| Molecular Formula | C12H12O6 |
| Molecular Weight | 252.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO supplies Tranilast impurity 4 (CAS 58818-70-5), a pharmacopoeial impurity reference standard (molecular formula C12H12O6, MW 252.22 g/mol) used for the identification and quantification of trace impurities in APIs.
Tranilast impurity 4 (C12H12O6) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Tranilast impurity 4 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H12O6 |
| Molecular Weight | 252.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
Related Tranilast Standards
Recommended Standards
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- Pemafibrate Impurity 58 (CAS 2008-01-7)
- Lusutrombopag Impurity 50 (CAS CATO-C4X-208450)
- Posaconazole Impurity 203 (CAS CATO-C4X-1208203)
- Levocarnitine Impurity N4 (CAS 2921-13-3)
- Α-D-Glucopyranosiduronic acid, (3β,20β)-20-carboxy-11-oxo-30-norolean-12-en-3-yl 2-O-β-D-glucopyranuronosyl-, xsodium salt (CAS 56649-78-6)
- (4-Chloro-3-methylphenyl)(3-chlorophenyl)methanone (CAS 951891-08-0)
- 2-Hydroxyphenyl N-benzylsulfamate (CAS 74282-81-8)
- Fmoc-Dap(Dnp)-OH (CAS 140430-54-2)
- Pemafibrate Impurity 60 (CAS CATO-C4X-290360)
- Methyl 2-amino-6-(tert-pentyl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 351981-10-7)
- Semaglutide Impurity 180 (CAS CATO-C4X-2226180)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com